An injection molding system comprising: a first selected valve, one or more downstream valves, delivering a fluid to a mold cavity, at least one fluid property sensor that detects a flow front of fluid material flowing downstream through the mold cavity at a trigger location within the cavity disposed between the first gate and at least one selected downstream gate, a controller instructing an actuator associated with the downstream gates to open the gates at a predetermined open gate target time on a first injection cycle, each valve associated with a position sensor that detects opening of a gate at an actual open gate time to the controller, the controller automatically adjusting time of instruction to open the gates on a subsequent injection cycle by an adjustment time equal to any delay in time between the predetermined open gate target time and the actual open gate time.

A magnetic clamping apparatus can be switched, by a reversal of a polarity of a first magnet, between an unclamping state in which a first mold is not clamped on an attraction face of a first magnetic plate 6 and a clamping state in which it is clamped on the attraction face. If a first operation is performed with respect to the magnetic clamping apparatus, a clamping operation of switching from the unclamping state into the clamping state is performed on condition that a proximity sensor is detecting proximity of the first mold. If a second operation that is different from the first operation is performed, the clamping operation is performed on condition that the proximity sensor is not detecting the proximity of the first mold.

The present disclosure relates to a system and method for monitoring an injection molding process which may calculate injection time and packing time by attaching an acceleration sensor to an injection molding mold with bolts and measuring an amplitude change of a vibration signal of a mold during injection molding, detect mold closing and opening signals of the mold using a magnetic hall sensor, and monitor the injection molding process by measuring cycle time and cooling time, thereby simplifying installation and maintenance and reducing installation costs.

Provided is a sensing device for quality management of molded products in which a haul sensor counting the number of times of mold-opening is fixedly installed on a controlling Printed Circuit Board (PCB) in a sensor module, a temperature sensor and an acceleration sensor for quality management of molded products are fixedly installed on a measuring PCB, and a Microcontroller Unit (MCU) and a memory equipped with a control algorithm are fixedly installed on the controlling PCB.

Provided is an injection-molded product quality analysis and monitoring system for injection-molded product quality management, the system having magnetic sensors attachably provided on a movable-side part and a fixed-side part so as to count the number of times molds have opened for injection molding, and managing the quality of products during molding-manufacturing by fixedly providing a temperature sensor at the mold so as to measure the temperature of the mold in real time, and thus measure whether the temperature is maintained within a set range, and fixedly providing an acceleration sensor or a vibration sensor at the mold so as to measure and analyze the amplitude of vibration signals, generated because of the pressure of resin injected into the mold, and the generation intervals of the vibration signals.

A resin molding method includes a physical property estimation step and a molding step. In The physical property estimation step, a resin is irradiated with electromagnetic waves including near-infrared rays; electromagnetic wave intensity of electromagnetic waves reflected by a surface of the resin is estimated; and flowability of the resin is estimated, based on electromagnetic wave intensity information that includes the electromagnetic wave intensity. In the molding step, a molding condition is adjusted, based on the estimated flowability of the resin; and the resin is molded under the adjusted molding condition.

The present invention relates to a method of introducing extruded flexible profiles and/or extruded flexible substrates, like foils or thermoformed foils/sheets, into an injection mold for the overmolding of at least one area of the single and/or multi-layer flexible extruded part. Making the over-molded extruded profile/foil a pre-assembly for an improved connection/assembly in terms of strength and sealing capability, as well as for a chemical and/or mechanical connection to a following injection molded part and/or introduction to a subsequent over-molding process.

The present disclosure relates to a system and method for monitoring an injection molding process which may calculate injection time and packing time by attaching an acceleration sensor to an injection molding mold with bolts and measuring an amplitude change of a vibration signal of a mold during injection molding, detect mold closing and opening signals of the mold using a magnetic hall sensor, and monitor the injection molding process by measuring cycle time and cooling time, thereby simplifying installation and maintenance and reducing installation costs.